Does it come with any warranty?

We are pleased to receive your questions Our warranty is for one year No guarantee against man-made damage If you have any questions, please contact me We will give you a satisfactory answer

Can teenagers use this?

You can adjust the weight so yes, although the lightest weight is still fairly hard

does any one know if their is an exercise chart for this machine.

See photos on this link showing how to use: https://www.amazon.com/LEJIEYIN-Twister-Arm-Exerciser-Strengthener/dp/B08S352RMT?th=1

Does this come with an exercise guide? Thank you in advance

How to exercise the arm press 1. Bend both arms and bend the springs hard behind the neck. 2. Bend the springs forward and upwards with both arms and then relax. 3. Bring both arms closer to the chest, bend the springs, then straighten and slowly relax. 4. Stand with your feet apart, bend your right elbow and bend the spring with your left hand, then bend your left elbow and bend the spring with your right hand. 5. With both arms behind you, hold the spring firmly, then straighten down and gradually bend. Notes on the arm press 1. Please check that all the connections of the arm strength machine are firm and free from looseness before use. 2. Adjust the arm press to a level of strength suitable for your fitness level before use. 3. When using, choose a relatively spacious area to exercise in order to avoid injury. 4. It is recommended that children under 12 years of age do not use the arm press.

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💪 Twist Your Way to Unstoppable Strength!

BUILT TO LAST - Crafted from high-density double carbon steel and reinforced with 10 rivets, this twister withstands intense daily use without deformation.
HYDRAULIC POWER SAFETY - Patented fully sealed hydraulic system ensures smooth, stable resistance without the risk of spring recoil injuries.
ERGONOMIC GRIP STORAGE - Non-slip PU handles with a secure buckle make workouts comfortable and storage effortless—designed for your busy lifestyle.
TOTAL UPPER BODY WORKOUT - Target wrists, arms, shoulders, chest, and back simultaneously—build functional strength that powers your everyday hustle.
CUSTOMIZABLE STRENGTH LEVELS - Easily dial through 19 resistance settings from 22 to 440 lbs to match your fitness journey—perfect for beginners and pros alike.

The LEJIEYIN Twister Arm Exerciser is a cutting-edge hydraulic resistance trainer offering 19 adjustable levels from 22 to 440 lbs. Engineered with a durable carbon steel frame and a sealed hydraulic cylinder, it delivers safe, consistent resistance without spring-related injuries. Its ergonomic PU handles and golden ratio triangle structure ensure comfort, stability, and longevity, making it ideal for comprehensive upper body workouts tailored to all fitness levels.

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¥19116

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Maximum weight recommendation	2E+2 Kilograms
Controls type	Push Button
Display type	LCD
Handle type	Polyurethane
Number of resistance levels	19
Operation mode	Manual
Power source	Hydraulic
Manufacturer	LEJIEYIN
UPC	711175870885
Color	Black
Style	Wrap
Shape	Cylinder
Material type	Carbon Steel, Polyurethane
Number of programs	1
Batteries included?	No
Department	Women's
Product Dimensions	42 x 15.99 x 4 cm; 2.34 kg
ASIN	B08S352RMT

LEJIEYIN Twister Arm Exerciser - Adjustable 22-440lbs Hydraulic Power/Arm Exercise Equipment/Upper Body Exercise/Chest Workout/Shoulder Exercise Machine

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